Split the Firefox window into multiple browsers by applying a tiled layout so that multiple websites can be viewed side by side. Resize tiles by dragging splitter bars. Open tabs and links by dragging into tiles. Synchronize scrolling of tiles.

John Heffron's History Rewrite -- A life-saving browser Add-on! With a quick "Alt+Y" all your tabs are closed, history cleared and then re-written with new sites! No more fumbling for the mouse when someone walks in!http://youtu.be/o8DwTTrrW6s